February 3, 2009 |
New research published in the February issue of the Journal of the American College of Surgeons shows a warm-up of 15 to 20 minutes with simple surgical exercises prior to an operation leads to a substantial increase in proficiency of surgical skills in surgeons of all experience levels. The researchers found that a warm-up of both psychomotor and cognitive skills raises surgeons’ alertness to a higher level for surgical procedures and improves performance for fatigued surgeons.
The advent of minimally invasive surgery has created new challenges for surgeons, requiring them to perform procedures with difficult-to-manipulate tools that constrain movement. Although new developments such as surgical robotics and more intuitive surgical instruments have addressed some of these issues, modern-day surgical practice often entails prolonged, strenuous cognitive performance as well.
“Warm-up exercises are a ‘common sense’ practice in many high-stakes professions, such as professional sports or dance,” said Kanav Kahol, Ph.D., department of biomedical informatics, Arizona State University, Tempe. “This study begins to lay a scientific foundation for adopting this approach in routine surgical practice, which has become increasingly rigorous and demanding.”
Forty-six surgeons across varying specialties and experience levels participated in the study. Subjects performed standardized exercises as a preoperative warm-up. Afterwards, the standardized exercises were repeated in randomized order to examine proficiencies in psychomotor and cognitive skills involved in surgical procedures. Proficiencies were measured by gesture-level proficiency, hand-movement smoothness, tool-movement smoothness, time elapsed and cognitive errors. Additionally, the researchers investigated generalizability of preoperative warm-up by following it with a different task, electrocautery simulation. They also examined the effect of the warm-up on fatigued participants based on their performance before and after night call.
The results showed statistically significant improvements after all of the post warm-up exercises (p<0.01) and across all experience levels. In addition, the warm-up exercises led to a significant increase in proficiency in follow-up electrocautery simulation (p<0.0001). There was also a significant improvement in performance of the fatigued group compared to baseline performance (p<0.05), although the surgeons in this group were still not able to reach optimal potential performance.